Twenty people were injured over the course of one week, according to gardaí.
Garda Niall Maguire said that seven of those assaulted sustained serious injury. A member of An Garda Síochána was among those who were injured, this week. His injuries are understood not to be serious. Gardaí say they have apprehended a suspect in this case.
This week, an alleged assault took place on a man in Dungloe at the weekend and a young man was allegedly attacked while walking home in Letterkenny last night, Monday.
Anyone with information is asked to contact Letterkenny and Dungloe Garda Stations.
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